make sure status is always set by finally block

confusingly, some errs are not subclasses of Exception (things like sys.exit()). Lets make sure the status is always set so cronitor knows what to ping.

app/cronitor.py

@@ -38,13 +38,11 @@ def cronitor(task_name):
         @wraps(func)
         def inner_decorator(*args, **kwargs):
             ping_cronitor('run')
+            status = 'fail'
             try:
                 ret = func(*args, **kwargs)
                 status = 'complete'
                 return ret
-            except Exception:
-                status = 'fail'
-                raise
             finally:
                 ping_cronitor(status)